Have you ever caught your cat staring at you, then suddenly copying your stretch or curling up right when you do? It’s almost uncanny—like your feline friend is reading your mind. But could there be ...

Animal play is fun, fair, chaotic, and serious business. The many ways in which nonhuman animals (animals) play with one another continues to intrigue many people—researchers, citizen scientists, and ...

Inspired by a reader’s claim his cat possibly possesses theory of mind, I decided to test my own pet (Letters, 25 January). The experiment: I stand in front of a (full-length) mirror with Samson, a ...